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psychopathology

Scale for the Assessment of Negative Symptoms (SANS) Test

Take the online Scale for the Assessment of Negative Symptoms (SANS) Test - AI psychologist FreudlyYou can take Scale for the Assessment of Negative Symptoms (SANS) Test here. Online version of a simple and accurate psychological test with interpretation.en
In five minutes, this 25-question questionnaire uses the Scale for the Assessment of Negative Symptoms (SANS) Test to clarify patterns of reduced motivation, emotional expression, pleasure, speech, and attention. Results provide a structured profile for self-reflection and identifying areas that may benefit from closer professional discussion.
Questions: 255 minutes
Scale for the Assessment: situation and reply bubbles
October 2, 2025October 2, 2025Material has been updatedOctober 2, 2025Material has been published
24,416 views
2,167 completions
1,759 likes
Daniel HallPsychologist · Test reviewer
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Scale Explorer

How the Scales are Structured

Attention Impairment (Global Score)AIS
This scale reflects the clinician’s overall impression of the severity of concentration and sustained-attention difficulties based on observation and interview.
example score2/5
2/5Mild–Moderateexample score
0 – 1None–Minimal
2 – 3Mild–Moderate
4 – 5Marked–Severe
A score of 2 falls in the Mild–Moderate range, suggesting noticeable but not severe difficulties with maintaining attention.
Anhedonia (Global Score)AS
Assesses the clinician-rated degree of reduced interest and diminished ability to experience pleasure from activities.
example score3/5
3/5Moderateexample score
0 – 1Low
2 – 3Moderate
4 – 5High
A score of 3 falls in the Moderate range, indicating a noticeable reduction in interest and pleasure relative to typical functioning.
Avolition (Global Score)AS
This scale rates the clinician-observed severity of reduced motivation, willpower, and initiation of goal-directed activity (abulia).
example score3/5
3/5Moderateexample score
0 – 1Low
2 – 3Moderate
4 – 5High
A score of 3 falls in the Moderate range, indicating a noticeable reduction in energy and initiative that can interfere with everyday activities.
Alogia (Global Score)AS
Assesses the clinician-rated severity of reduced speech output and impoverished thought processes (alogia).
example score3/5
3/5Moderateexample score
0 – 1Low
2 – 3Moderate
4 – 5High
A score of 3 indicates a moderate level of alogia, with noticeable reductions in spontaneity and amount of speech.
Affective Flattening (Global Score)AFS
This scale quantifies the clinician-observed reduction in the patient's emotional expressiveness (affective flattening).
example score2/5
2/5Mild–moderateexample score
0 – 1Minimal/none
2 – 3Mild–moderate
4 – 5Marked–severe
A score of 2 indicates a mild to moderate reduction in observable emotional expression during interaction and observation.
Total Summary ScoreTSS
This scale summarizes the clinician’s overall impression of the severity of negative symptoms based on observation and dialogue.
example score7/25
7/25Low severityexample score
0 – 8Low severity
9 – 16Moderate severity
17 – 25High severity
A total score of 7 falls in the Low severity range, suggesting a relatively mild overall level of observed negative symptoms on this assessment.
Sum of Subscale ScoresSoSS
This scale sums intermediate SANS ratings to quantify the overall severity of observed negative symptoms.
example score43/100
43/100Moderateexample score
0 – 33Low
34 – 66Moderate
67 – 100High
A score of 43 falls in the Moderate range, indicating a moderate overall severity of the negative symptoms captured by the intermediate ratings.
Attention ImpairmentAI
Measures observable difficulties with focusing, sustaining attention, and resisting distraction during tasks or conversation.
example score8/10
8/10Highexample score
0 – 3Low
4 – 6Moderate
7 – 10High
A score of 8 falls in the High range, indicating marked distractibility and reduced ability to maintain attention in observed interactions.
AnhedoniaA
Assesses reduced capacity to experience pleasure and interest in typical activities, especially social engagement.
example score7/20
7/20Moderateexample score
0 – 6Low
7 – 13Moderate
14 – 20High
A score of 7 falls in the Moderate range, indicating a noticeable reduction in pleasure or interest across usual activities.
AvolitionA
Assesses the severity of abulia, reflecting reduced drive, initiative, and goal-directed activity without prominent depressive affect.
example score12/15
12/15Highexample score
0 – 5Low
6 – 10Moderate
11 – 15High
A score of 12 falls in the High range, indicating marked and persistent reductions in motivation and initiative with likely impact on everyday functioning.
AlogiaA
Assesses the severity of reduced speech output and impoverished verbal thought content (alogia) observed during interaction.
example score9/20
9/20Moderateexample score
0 – 6Low
7 – 13Moderate
14 – 20High
A score of 9 falls in the Moderate range, indicating noticeable but not extreme reductions in speech amount and/or content during observation.
Affective FlatteningAF
Assesses reduced emotional expressiveness and responsiveness as observed in behavior and reactions.
example score10/35
10/35Lowexample score
0 – 11Low
12 – 23Moderate
24 – 35High
A score of 10 falls in the Low range, suggesting relatively mild observed reduction in emotional expressiveness and responsiveness.
Total ScoreTS
This scale quantifies the overall severity of negative symptoms such as reduced emotional expression, poverty of speech, low motivation, diminished pleasure, and attention deficits.
example score47/125
47/125Moderateexample score
0 – 29Low
30 – 60Moderate
61 – 125High
A score of 47 falls in the Moderate range, indicating a noticeable but not extreme overall level of negative symptom severity on the SANS.
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DATA-BASED USER COHORTS

Who Usually Takes This Test?

Psychiatrists in clinical practice
44%OF USERS
They use the scale to quickly rate negative symptoms in schizophrenia-spectrum disorders and track changes during treatment.
Clinical psychologists and therapists
33%OF USERS
They complete it during structured observation and interviews to document emotional flattening, apathy, and reduced speech.
Residents and mental health trainees
23%OF USERS
They take it to learn a standardized, quantitative way to recognize and communicate negative symptoms within a care team.
BASED ON AGGREGATED, ANONYMIZED DATA FROM TENS OF THOUSANDS OF FREUDLY USERS.
Benchmarking

See How You Compare

Once you complete the test, your results are compared with real-world data from people in your country.
Below is a preview of how scores are typically distributed across each scale.
Shaded area — where most people score
Dot — the average
You — your score lands on each curve after the test— your score, after the test
Attention Disorders (Composite Score)ADS
You?
Average2.2
Typical rangeTypical1.4 – 3.1
Possible0 – 5
Anhedonia (composite score)As
You?
Average2.3
Typical rangeTypical1.4 – 3.1
Possible0 – 5
Abulia (overall score)As
You?
Average3.2
Typical rangeTypical2.3 – 4.1
Possible0 – 5
Alogia (General Score)AS
You?
Average2.9
Typical rangeTypical2.1 – 3.6
Possible0 – 5
Affective flattening (composite score)Afs
You?
Average2
Typical rangeTypical1.4 – 2.7
Possible0 – 5
Total of aggregated scoresToas
You?
Average12.1
Typical rangeTypical7.9 – 16.2
Possible0 – 25
Sum of intermediate scoresSois
You?
Average66.5
Typical rangeTypical52 – 80.9
Possible0 – 100
Attention DisordersAD
You?
Average5.6
Typical rangeTypical4.1 – 7.1
Possible0 – 10
AnhedoniaA
You?
Average8.5
Typical rangeTypical5 – 12.1
Possible0 – 20
AbuliaA
You?
Average8.9
Typical rangeTypical6.4 – 11.4
Possible0 – 15
AlogiaA
You?
Average10.3
Typical rangeTypical7 – 13.6
Possible0 – 20
Affective FlatteningAF
You?
Average12.7
Typical rangeTypical8.2 – 17.3
Possible0 – 35
Overall scoreOs
You?
Average55.1
Typical rangeTypical37.4 – 72.8
Possible0 – 125
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SAMPLE QUESTIONS

Example Questions From the Test

Symptom ratings should be completed by one, or preferably two, experienced raters who are thoroughly familiar with the scale’s glossary. At hospital admission and during the initial assessment, symptoms are rated for the month preceding hospitalization. To evaluate treatment effectiveness, the scale may be administered weekly or less frequently; in such cases, ratings should cover the interval since the previous assessment.
    • Absent: facial expression is completely lively
    • Questionable reduction in facial expressiveness and animation
    • Mild: facial expressiveness is slightly reduced, or the face becomes fixed intermittently
    • Moderate: facial expressiveness is clearly reduced
    • Marked reduction in facial expressiveness, but facial reactions may occur at times
    • Severe: the face is a fixed (“wooden”) mask that does not change during the interview
    • Absent
    • Questionable pathology
    • Mild – one episode of blocking in 15 minutes
    • Moderate – two episodes in 15 minutes
    • Marked – three episodes of speech blocking in 15 minutes
    • Severe – more than three episodes in 15 minutes
    • absent
    • questionable pathology
    • mild but definite
    • moderate
    • marked pathology
    • severe
WHAT THE TEST MEASURES

Scale for the Assessment of Negative Symptoms (SANS) Test - Description and methodology of the test

psychopathology
schizophrenia

For readers examining reduced motivation, emotional expression, speech, pleasure, or concentration, the Scale for the Assessment of Negative Symptoms (SANS) Test organizes observations into a profile of negative-symptom domains. As a negative symptoms assessment, it supports focused self-reflection and helps identify patterns that may deserve closer discussion, while keeping the result focused on patterns rather than conclusions about causes.

What This Assessment Explores

Negative symptoms here describe diminished activity or expression across several areas, not one isolated mood state. The items address facial and vocal expressiveness, gestures and eye contact, speech production and content, initiative, energy, recreation, intimacy, friendships, and sustained attention. They suit readers who want to examine whether everyday changes cluster together.

The SANS questionnaire links these features with social, educational, occupational, and recreational functioning. Higher results indicate more pronounced features within the named domain; summary scores offer an overall view, but an individual profile may show uneven effects across domains. This makes the domain-level pattern more informative than a single number alone.

Methodology and Scientific Basis

Responses use an ordered 0-5 severity format, moving from absent or questionable signs to severe manifestations. Some prompts refer to interview observation, social functioning, or formal test performance, so an online response depends on interpretation rather than direct clinical observation. The displayed scales and bands are:

  • Anhedonia (Global Score) 0-5: Low 0-1/Moderate 2-3/High 4-5; Anhedonia 0-20: Low 0-6/Moderate 7-13/High 14-20; these measure clinician-rated pleasure and interest.
  • Avolition (Global Score) 0-5: Low 0-1/Moderate 2-3/High 4-5; Avolition 0-15: Low 0-5/Moderate 6-10/High 11-15; these measure energy, will, motivation, and initiative.
  • Alogia (Global Score) 0-5: Low 0-1/Moderate 2-3/High 4-5; Alogia 0-20: Low 0-6/Moderate 7-13/High 14-20; these measure speech output and thought content.
  • Affective Flattening (Global Score) 0-5: Minimal/none 0-1/Mild-moderate 2-3/Marked-severe 4-5; Affective Flattening 0-35: Low 0-11/Moderate 12-23/High 24-35; these measure emotional expressiveness and responsiveness.
  • Attention Impairment (Global Score) 0-5: None-Minimal 0-1/Mild-Moderate 2-3/Marked-Severe 4-5; Attention Impairment 0-10: Low 0-3/Moderate 4-6/High 7-10; these measure concentration and sustained attention.
  • Total Summary Score 0-25: Low severity 0-8/Moderate severity 9-16/High severity 17-25; Sum of Subscale Scores 0-100: Low 0-33/Moderate 34-66/High 67-100; Total Score 0-125: Low 0-29/Moderate 30-60/High 61-125; these summarize negative-symptom severity.

The questionnaire is conceptually consistent with SANS (Andreasen, 1982), the 1984 SANS manual, and Andreasen’s 1989 conceptual account, but it is not a formally standardized clinical administration or an adaptation of the published instrument. Results can shift with current context, self-awareness, and response bias; the bands are descriptive categories rather than diagnostic thresholds. A negative symptom severity profile is therefore a starting point for broader assessment.

Author: Nancy C. Andreasen
Literature:
  • Andreasen, N. C. (1982). Negative symptoms in schizophrenia: Definition and reliability. Archives of General Psychiatry, 39(7), 784-788. 10.1001/archpsyc.1982.04290070020005
  • Andreasen, N. C. (1984). Scale for the Assessment of Negative Symptoms: SANS. Iowa City, IA: Department of Psychiatry, College of Medicine, the University of Iowa.
  • Andreasen, N. C. (1989). The Scale for the Assessment of Negative Symptoms (SANS): Conceptual and theoretical foundations. British Journal of Psychiatry, 155(S7), 49-52. 10.1192/S0007125000291496

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